Fever | Body temperature | Seizures | Infection

 

A fever is generally your body temperature is higher than your normal average temperature. Mostly healthcare providers say a fever is 100.0 F (37.8 C) or 100.4 F (38 C). When you have a fever, it’s your body’s response to fight against the infection or illness. Usually, fever is not a serious illness. But the fever can go away when the infection goes away.

Fever is the overall response from your body’s immune system. Usually, fever is caused by an infection. For most children and adults, fever may give you discomfort or an uncomfortable feeling. For infants, even a low fever means there is a serious infection. Generally, within a few days fever can go away. Various counter medications help to lower a fever. But you do not need to treat a fever if it does not cause you discomfort.

Fever symptoms

In addition to sudden rise of temperature, you may experience the below symptoms:

• Chills, feeling cold, shivering and shaking.

• Body aches and headaches.

• Fatigue or tiredness.

• On and off or continuous sweating.

• Flushed complexion or hot skin.

• Faster heart beats.

Some of the additional fever symptoms in babies and children:

• Lack of appetite like not eating and drinking well.

• Earache or pulling at their ears.

• High-pitched crying.

• Fussiness.

• Paleness or flushness.

• Excessive thirst.

• Decreased urination.

Causes of fever

Usually, fever will have many causes and it can be a symptom of almost any illness. Some of the common conditions which causes fever includes:

• Bacterial infections.

• Viral infections like influenza or flu or COVID-19.

• Gastrointestinal (GI) infections.

• Urinary tract infections.

• Skin infections.

You may also develop a fever because of :

• A reaction to certain medications.

• Vaccinations.

• Autoimmune disorders.

• Cancer.

Diagnosis methods

Generally, fever is a symptom not an illness but the exact cause must be found before beginning your specific treatment. If the cause of the fever is not clear after your provider asks about your medical history and performs a physical examination, some test might be necessary to take. These tests are:

• blood tests

• urine sample examination and culture test 

• throat swabs or taking mucus sample for lab examination and culture test

• stool sample for examination and culture test 

• X-rays.

Treatment

For a mild fever, your healthcare provider may not suggest taking medications to lower your body temperature. These mild fevers will be helpful in reducing the number of microbes which causes your illness. Fever which is above the 102 F (38.9 C) will cause discomfort and it requires treatment.

Over-the-counter medications

In the case of people with a high fever or a fever which causes discomfort, your healthcare provider will suggest nonprescription medications like acetaminophen drugs such as Tylenol, others or drugs like ibuprofen such as Advil, Motrin IB, others.

You can use these medications according to the medicine label instructions or as suggested by your healthcare professional. You do not take too much dosage of drugs. High doses or use of drugs which are long-term drugs like acetaminophen or ibuprofen might cause liver damage and kidney damage and in some cases acute overdoses can be fatal. You do not give aspirin to children because it may trigger a rare and potentially fatal disorder called Reye's syndrome.

These medications help to lower your temperature but still you may feel a mild fever. Usually, medications can take 1 to 2 hours to work in your body. You must consult your healthcare provider if your fever does not improve after taking the medications.

Prescription medications

Your healthcare professional may suggest other medications which are based on the cause of your illness. Treating the cause will help you to lessen the signs and symptoms including fever.

Treatment of infants

Infants, particularly those who are younger than 2 months old,may need to be admitted to hospitalization for testing and treatment. In infants this age, a fever could indicate a serious infection which requires IV medications and 24/7 monitoring.

Prevention

You can prevent the fever by avoiding exposure to infection or illness. Some tips are:

• You should Get vaccinated which can be recommended for some infectious diseases like influenza and COVID-19.

• You must Follow public health guidelines for wearing masks and follow social distancing.

• You must wash your hands frequently and you must teach your children to follow the same, particularly before you eat, after going to the toilet, after spending a lot of time in a crowded place or if you are around with someone who is sick, after you pet or playing with animals, and must during your travel on public transportation.

• You should carry a hand sanitizer with you wherever you go for times when you do not have soap and water with you.

• You must try to avoid touching your nose, mouth or eyes, because these are the important ways that viruses and bacteria can enter your body and cause you severe infection.

• You should cover your mouth and nose when you cough and sneeze, and you must teach your children to follow the same. 

• You must avoid sharing cups, water bottles and cooking or eating utensils with your child or children.

Frequently Asked Questions

Q1. What is the reason for a fever?

Ans: You get a fever because your body is trying to kill the virus or bacteria that caused the infection.

Q2. How do you break a fever?

Ans: You can break a fever by getting plenty of rest, drinking fluids, using blankets if you have shivers or an ice pack if you're too hot, and by taking medications like acetaminophen or ibuprofen.

Q3. How long do fevers last?

Ans: Most fevers will improve on their own in a few days. However, there are a number of things you can do to help the uncomfortable feelings associated with a fever.

Q4. Which fever is viral?

Ans: A viral fever refers to any fever that results from a viral infection, such as the flu or dengue fever.

Q5. Why is fever worse at night?

Ans: At night, there is less cortisol in your blood. As a result, your white blood cells readily detect and fight infections in your body at this time, provoking the symptoms of the infection to surface, such as fever, congestion, chills, or sweating.